SHEAR THICKENING PREGELATINIZED STARCH

摘要

A new starch exhibits shear-thickening properties. It is a pregelatinized, cold water swelling starch, comprising: a highly cross linked, stabilized starch processed by heating to render it cold water swelling and leaving a majority of the starch granules intact. According to the process a highly cross linked starch is obtained. Then, the starch is heated under conditions of time, temperature and moisture effective to disrupt less than 50 % of intact starch granules comprised in said starch and to provide the characteristic that when a slurry of said starch is subjected to moderate to high shear the viscosity will increase toward a maximum.